Version 6.0, January 2014 Added get-display-backing-scale Added get-backing-scale to bitmap% Fixed key-event% get-key-release-code to return 'press instead of 'down for a key-down event Changed GUI size limit to 1000000 Add dimension-integer?, position-integer?, spacing-integer?, and positive-dimension-integer? Framework: changed backward-containing-sexp so it returns #f in more situations Framework: syntax colorer now usees 'text' for stuff between {}s in scribble mode (not string) bitmap-dc% get-pixel and set-pixel now transmit alpha values to/from their arguments ---------------------------------------- Version 5.1, February 2011 The GRacket executable is now a thin wrapper on the Racket executable, with the drawing and GUI libraries re-implemented as plain Racket libraries. See "Draw_and_GUI_5_1.txt" in the Racket release-notes directory. These notes will be discontinued. ---------------------------------------------------------------------- Version 5.0.2, October 2010 Minor bug fixes ---------------------------------------------------------------------- Version 5.0.1, July 2010 Minor bug fixes ---------------------------------------------------------------------- Version 5.0, May 2010 Changed the executable from MrEd to GRacket ---------------------------------------------------------------------- Version 4.2.5, March 2010 Changed radio-box% to allow #f as a selection so that no buttons are selected Added accept-tab-focus method to canvas<%> and editor-canvas% ---------------------------------------------------------------------- Version 4.2.4, January 2010 Minor bug fixes ---------------------------------------------------------------------- Version 4.2.3, November 2009 Minor bug fixes ---------------------------------------------------------------------- Version 4.2.2, September 2009 Minor bug fixes ---------------------------------------------------------------------- Version 4.2.1, July 2009 Minor bug fixes ---------------------------------------------------------------------- Version 4.2, May 2009 Ported the editor classes (text%, snip%, editor-canvas%, etc.) from C++ to Scheme ---------------------------------------------------------------------- Version 4.1.5, March 2009 Minor bug fixes ---------------------------------------------------------------------- Version 4.1.4, January 2009 Changed image-snip% to implement equal<%> ---------------------------------------------------------------------- Version 4.1.3, November 2008 Minor bug fixes ---------------------------------------------------------------------- Version 4.1.2, October 2008 Changed -z/--text-repl to a configuration option ---------------------------------------------------------------------- Version 4.1.1, October 2008 Minor bug fixes ---------------------------------------------------------------------- Version 4.1, August 2008 Added auto-resize init argument and method to message% Added scroll-editor-to method to editor<%> Added on-reflow method to text% ---------------------------------------------------------------------- Version 4.0, June 2008 Mac OS X and Windows: adjusted window refresh to draw only in update regiion Minor bug fixes ---------------------------------------------------------------------- Version 372, December 2007 Minor bug fixes ---------------------------------------------------------------------- Version 371, August 2007 Fixed (get-face-list 'mono) for Mac OS X and X11 Changed begin-container-sequence to delay making windows visible Added 'no-focus style for canvas% ---------------------------------------------------------------------- Version 370, May 2007 WXME file format changed to include a #reader() prefix Added is-maximized? method to frame% (Windows, Mac OS X) Improved the disabled appearance of some controls under Mac OS X Added use-style-background and style-background-used? methods to editor-snip%; changes the editor-snip WXME format Mac OS X printer-dc% uses scaling specified by the current ps-setup% ---------------------------------------------------------------------- Version 360, November 2006 Added get-other-altgr-key-code and get-other-shift-altgr-key-code to key-event%, and adjusted Ctl- (Windows, X) and Cmd- (Mac OS X) mappings to preserve Shift (and Option), moving the unshifted version to the "other" fields; adjusted keymap% matching to use new "other" fields and to more precisely weight matches Mac OS X: fixed event handling to support CJK input and input from the character palette Removed on-scroll from canvas<%> and editor-canvas% ---------------------------------------------------------------------- Version 352, July 2006 Minor bug fixes ---------------------------------------------------------------------- Version 351, July 2006 Changed the shortcut type for selectable-menu-item<%> to allow key-code symbols Added get-shortcut-prefix and set-shortcut-prefix to menu-item to selectable-menu-item<%>, along with corresponding initialization argument to menu-item% and checkable-menu-item% Added get-default-shortcut-prefix Removed get-x-shortcut-prefix and set-x-shortcut-prefix from selectable-menu-item<%> Added get-other-shift-key-code to key-event% Added support for "?:" modifier to keymap state strings Changed internal handling of keyboard events ---------------------------------------------------------------------- Version 350, June 2006 Default max undo history for an editor<%> is 0; use set-max-undo-history to enable undo Disabled menu-item shortcuts stay effective (to just beep) When no location is given for a dialog%, it is centered when shown Added 'no-sheet dialog% style Added |MrEd:emacsUndo| low-level preference ---------------------------------------------------------------------- Version 301, Decmber 2005 Fixed a bug in reading non-text files whose encoding contains a byte string longer than 64 bytes ---------------------------------------------------------------------- Version 300, Decmber 2005 Changed editor file format to an ASCII encoding Changed measurement of text for post-script-dc% Changed label->plain-label to strip parenthesized mneumonics Added 'package and 'enter-package flags to put-file, and changed Mac OS X put-file to use extension and filters args Added on-mdi-activate to frame% ---------------------------------------------------------------------- Version 299.400, September 2005 No MrEd-specific changes ---------------------------------------------------------------------- Version 299.200, August 2005 Added get-handle to window<%> Added open-output-text-editor Changed application-file-handler so that handler's result is used; #f tells Windows that the application won't quit ---------------------------------------------------------------------- Version 299.100, March 2005 General: Added support for smoothed (i.e., anti-aliased) shape drawing, including support for spline-based paths; under X, smoothed drawing requires Cairo Mac OS X: switched to composite Carbon layer for widgets, added support for full keyboard access X: modernized GUI look, added support for X clipboard (as opposed to the X selection) Changed some methods to augmentable instead of overrideable (see MzScheme_300.txt about augmentable methods): top-level-window<%>: can-close? on-close editor<%>: on-change on-snip-modified can-save-file? on-save-file after-save-file can-load-file? on-load-file after-load-file on-edit-sequence after-edit-sequence text%: can-insert? on-insert after-insert can-delete? on-delete after-delete can-change-style? on-change-style after-change-style after-set-position can-set-size-constraint? on-set-size-constraint after-set-size-constraint pasteboard%: can-insert? on-insert after-insert can-delete? on-delete after-delete can-move-to? on-move-to after-move-to can-resize? on-resize after-resize can-reorder? on-reorder after-reorder can-select? on-select after-select can-interactive-move? on-interactive-move after-interactive-move can-interactive-resize? on-interactive-resize after-interactive-resize Widgets and Widget Features: Added a default callback procedure for every control<%> class that has a callback Added combo-field% Added 'float and 'metal styles to frame% Added 'combo, 'transparent, and 'resize-corner styles to canvas% and editor-canvas%; added 'no-border, 'auto-vscroll, and 'auto-hscroll flags to editor-canvas%; added set-resize-corner to canvas<%>; added show-scrollbars and method to canvas% Added set-min-width function to popup-menu% Added set-canvas-background and get-canvas-background to canvas<%> Added get-item-label, set-item-label, and set to tab-panel% Added 'blank cursor% Added hide-cursor-until-moved, called by text%'s on-char Added message+check-box and message+check-box/custom Added a font intialization argument for control<%> classes and popup-menu%, and added get-font method Removed get-label-font, get-control-font, set-label-font, set-control-front, get-label-position, and set-label-position from area-container<%> and implementing classes Added normal-control-font, small-control-font, tiny-control-font, view-control-font, and menu-control-font constants Drawing: Added set-smoothing and get-smoothing to dc<%> Added dc-path% class and added draw-path to dc<%> Added set-path to region% Added in-region? to region% Added draw-bitmap-section-smooth to bitmap-dc% (not dc<%>) Added variants of dc<%>'s set-{pen,brush} that accept arguments like the-{pen,brush}-list's find-or-create-{pen,brush} Changed default of radius argument of set-rounded-rectangle in region% to -0.25 (consistent with dc<%> method) Changed the font% constructor so that weight and style arguments are optional Added screen-glyph-exists? to font% and glyph-exists to dc<%> Removed get-afm-path and set-afm-path from ps-setup%; use the PLTAFMDIR environment variable or the current-ps-afm-file-paths parameter, instead Added can-show-native? and show-native to ps-setup% Changed default 'default PostScript font to Helvetica Changed default 'decorative PostScript font to Helvetica Changed gl-context% swap-buffers to use the call-as-current lock, and changed the lock to be re-entrant Added gl-config%, a gl-config init argument to canvas%, and set-gl-config and get-gl-config methods to bitmap% X: improved performance of bitmap scaling when RENDER is available Improved performance of get-argb-pixels, set-argb-pixels, and loading of PNG and JPG files on some platforms Misc: Added the-x-selection-clipboard Added paste-x-selection and do-paste-x-selection to editor<%> Added "paste-x-selection" to add-editor-keymap-functions Changed "middlebutton" mapping in the default text keymap initializer's map to use paste-x-selection Dropped question marks for interactive and use-paper-bbox initialization arguments of post-script-dc%; added as-eps initialization argument Added an as-eps argument to editor<%>'s print method Flattened text from an editor<%> always uses #\newline, not a platform-specific line separator Added background-color argument to editor<%>'s refresh Added on-split-snip, on-merge-snips, and get-revision-number to text% Changed read-one-special in readable-snip<%> to read-special Added get-unterminated-bytes to editor-stream-in% Removed >> and << from the editor-stream classes, and changed "string" to "bytes" in class and method names ---------------------------------------------------------------------- Version 209, December 2004 No significant changes. ---------------------------------------------------------------------- Version 208, August 2004 No significant changes. ---------------------------------------------------------------------- Version 207, May 2004 Changed Windows launching behavior to bring an existing window to the front and to use `application-file-handler' to deliver comamnd-line arguments ---------------------------------------------------------------------- Version 206p1, February 2004 Fixed printing scale for Windows NT/2000/XP Version 206, January 2004 Drawing: Changed get-argb-pixels and set-argb-pixels to row-major order: left to right then top to bottom Added get-bitmap and get-bitmap-mask to image-snip% PostScript `draw-bitmap' now uses a supplied mask Changed the default radius for dc<%>'s draw-rounded-rectangle to -0.25, and added checking and a mismatch exception when the radius is out of range Text and fonts: Added optional argument to draw-text in dc<%> for rotation Changed text scaling to support independent X and Y scale (except Windows 95/98/Me) Added argument to font%, etc., to make size in pixels Added size-in-pixels to style<%> and style-delta% X with fontconfig/Xft: Added remapping for the 'symbol family to match Adobe symbols (like Mac OS X) X with fontconfig/Xft: Added substitution support via comma-separated font names X with fontconfig/Xft: Changed default 'symbol face mapping to " Standard Symbols L,Nimbus Sans L" Added optional 'mono argument to get-face-list Frames: X, Mac OS: minimum size and non-stretchiness of a frame or dialog is enforced by the window manager Added optional argument to get-display-size to get the entire screen's size under Windows and Mac OS Added get-display-left-top-inset Added 'hide-menu-bar frame style Initial location for a frame can use negative numbers, and the move method can move a frame to a negative location Editors: Added an optional argument to begin-edit-sequence in editor<%> to treat actions before and after sequence as consecutive Framework collection: Changed the defaults for frame:standard-menus-mixin; the method file-menu:between-save-as-and-print method no longer creates a separator menu item Changed the overriding method behavior of drscheme:frame:basics-mixin Modes are now based on the language settings, rather than the filename ---------------------------------------------------------------------- Version 205: August, 2003 Anti-aliased text: Text rendering uses smoothing (anti-aliasing) for Mac OS X, Windows, and X with Xft/fontconfig/RENDER PNG format and image masks: Added 'png and 'png/mask as load bitmap types, and added optional background color argument for loading 'png Added 'jpeg and 'png as save bitmap types Changed draw-bitmap and draw-bitmap-section to accept a non-monochrome bitmap as a mask (serving roughly as an inverted alpha channel) Changed image-snip% to use a mask attached to a bitmap, if any, and to preserve the mask bitmap when the file is saved OpenGL: OpenGL support now available on all platforms; see also the "sgl" collection Changed canvas% so that 'gl style is no longer needed to enable OpenGL drawing in the canvas Added get-gl-context method to dc<%>, which returns a gl-context<%> for canvas and bitmap DCs Changed with-gl-context method of canvas% to use call-as-current for its gl-context<%>; the difference from the old behavior is that such context-setting is serialized across all eventspaces GUI: Added 'no-autoclear style to canvas% Added 'control-border style to canvas% and editor-canvas% Added 'hilite style for pen% and brush% Windows: Use XP theme controls (under Windows XP) Windows: system font is Tahoma when available, default font is Microsoft Sans Serif when available Mac OS X: Added 'toolbar-button style, on-toolbar-button-click method, and modified method to frame%; the 'toolbar-button style only affects the frame under OS X Mac OS: Added current-eventspace-has-menu-root? and support for 'root parent of a menu-bar% instance Mac OS: Added application-file-handler Mac OS: Key-release events now reported Mac OS X: Fixed menu-bar flashing bug, thanks to Paul Schlie Editor: Added write-editor-version and read-editor-version Changed cut-and-paste WXME format to include version Added on-display-size-when-ready and lock for refresh that blocks an edit sequence Added get-text! to snip% Added locations-computed? to editor<%> Added locked-for-write?, locked-for-flow?, and locked-for-read? to editor<%> Misc: Handling of --main/-C command-line flag changed ---------------------------------------------------------------------- Version 204: May, 2003 Mac OS X: tab-panel% draws a border around its content by default Added 'no-border style to tab-panel% Windows: removed border around radio-box% buttons, changed label to follow requested positioning Added group-box-panel% Added eventspace-handler-thread Added vertical-inset and horizontal-inset methods to editor-canvas% Changed text-field% to have margins of 2, reduced space between the edit-box border and the editable text Windows: switched to XP-style controls under XP Added application-quit-handler ---------------------------------------------------------------------- Version 203: December, 2002 Windows: corrected a source of much instability Added tab-panel% Added message-box/custom Added 'app, 'caution, and 'stop styles to message-box Added 'app, 'caution, and 'stop labels for message% Added value init argument to check%, selection init argument to radio-box%, choice%, and list-box%; in the argument order, the new argument follows the style argument Added checked init argument for checkable-menu-item% Added and 'deleted style to every subwindow<%> class; a window created with 'deleted is initially invisible and takes no space in its container Added `file-creator-and-type', useful in Mac OS Mac OS X: file dialogs use given starting directory, and dialog%s with a parent frame are shown as "sheets" Mac OS X: MrEd3m is now supported ---------------------------------------------------------------------- Version 202: August, 2002 Added 'panel brush style for drawing in the current platform's panel background color and pattern. Added application-about-handler, application-preferences-handler, and current-eventspace-has-standard-menus? Mac OS X: fixed handling of the standard `Quit' menu item; it now invokes the `on-exit' handler of the most recently active frame in the initial eventspace ---------------------------------------------------------------------- Version 201: July, 2002 Added 'unknown/mask and 'unknown/gif bitmap types and get-loaded-mask and set-loaded-mask methods to bitmap%; used for GIF files containing transparent pixels New load handler, text-editor-load-handler, enables MrEd to load source files that are stored in the graphical editor format Added open-input-text-editor, used by the load handler Added readable-snip<%>, which is recognized in ports created with open-input-text-editor to "read" special snips Changed file loading and saving so that a snip class name of the form "(lib ...)" triggers the loading of a snip class implementation Removed get-clipboard-client from clipboard<%> Changed set-clipboard-client to associate a clipboard-client% object to the current eventspace, and the-clipboard to call methods within the eventspace through event callbacks Added a variant of insert-file to editor<%> to accept an input port instead of a filename Changed load-file, save-file, and insert-file in editor<%> to raise exceptions instead of returning booleans Added can-reorder?, on-reorder, and after-reorder to pasteboard% Added on-snip-modified method to editor<%>, set-unmodified method on snip%, and modified method to editor-admin and snip-admin Added 'packages and 'enter-packages style flags to get-file and get-directory; affects only Mac OS ---------------------------------------------------------------------- Version 200: June, 2002 Changed mouse-event% and key-event% positions (x and y) to be exact integers Added 'wheel-up and 'wheel-down "key" events Added 'release key events Added popup-menu to window<%> Added a popup menu to the message-box dialog that copies the contained message to the clipboard Changed methods in dc<%> classes to raise an exception if the DC is not ok (except for the ok? method) Changed dc<%>'s draw-bitmap and draw-bitmap-section to scale the bitmap if the dc<%> has a scale, and to accept a mask bitmap The get-resource and write-resource procedures are deprecated, and not supported for Mac OS; MrEd uses the preferences file that ismanaged by MzLib's get-preference and put-preferences Changed text% undo to restore the pre-modification selection Changed text% so that later-installed clickbacks take precedence Changed cursor% constructor to take image and mask bitmaps instead of a filename Restricted all label string arguments to <= 200 characters Added optional filters argument to get-file, put-file, and get-file-list (used by Windows, only) Added get-directory Fixed internal lock handling on focus and activation events Removed ps-setup%'s get-options and set-options Added a use-paper-bbox? initialization argument to post-script-dc% Added a 'gl style flag to canvas%, and with-gl-context and swap-gl-buffers methods; supported for Windows, only Added container-flow-modified method to area-container<%> Added "standard" HTML colors to the-color-database Added 'size-n/s, 'size-e/w, 'size-ne/sw, and 'size-nw/se icons Windows: removed special handling of Ctl-m, Ctl-i, and Ctl-h X: play-sound in Linux uses the "play" program, and under Solaris, it uses the "audioplay" program X: Default keymap double-click time determined via the standard Xt function X: 'no-resize-border and 'no-caption work for frame% with many window managers X: too-long menus can scroll X: changed default preview command from "ghostview" to "gv" Mac OS: play-sound plays virtually any kind of sound, including .wav files; QuickTime 3.0 or higher is required ---------------------------------------------------------------------- Version 103: August 28, 2000 Added 'wait as a possible argument to yield, and changed startup to call (yield 'wait), with new meaning for -V flag Removed 'anchored flag for snip% (wasn't implemented) Added support for loading JPEG file (but not saving) Added get-clipboard-bitmap and set-clipboard-bitmap to clipboard<%> Changed graphical-read-eval-print-loop to take an optional eventspace argument, which determines the evaluation eventspace Fixed menu shortcut handling to call the menu bar's `on-demand' method before looking for a key binding Fixed auto-wrapping bug in text% Fixed set-max-undo-history in editor<%> Windows: editors can paste bitmaps copied to the clipboard from other programs Windows: fixed get-file-list ---------------------------------------------------------------------- Version 102: June 26, 2000 Changed the interaction of face and familiy settings in a font for drawing text Removed get-afm-name and set-afm-name from font-name-directory<%>, and changed post-script-dc% to use the PostScript font name as the AFM file name Added get-margin and set-margin to ps-setup%; post-script-dc% uses the margins to shrink its paper size and offset its output Changed pen%'s width from integer to real number (used for PS) Added on-superwindow-show and on-superwindow-enable to window<%> Added get-file-list procedure Added on-message to top-level-window<%> Added send-message-to-window procedure Added pop-down callback initialization argument to popup-menu%, and added 'menu-popdown and 'menu-popdown-none event types to control-event% Added get-popup-target method to popup-menu% Added popup-menu method to editor-admin% and snip-admin% Added can-do-edit-operation? to editor<%> Added "leftbuttonseq", "middlebuttonseq", and "rightbuttonseq" to keymap%'s map-function Changed the default text keymap initializer to map right button releases to popup an edit menu Changed the meaning of the on-change method in editor<%>; see the manual for details Editor reading/writing/cutting/pasting no longer relies on global state, so exceptions raised for one editor do not affect other editors Removed read-done and write-done from snip-class% Moved reading-version to snip-class% (from snip-class-list%) Added offset argument to dc<%>'s get-text-extent and draw-text Made stdio window for Windows/MacOS accept input (for `read', etc.) X, Mac: Fixed list-box% to handle arbitrarily many list items X: Fixed input of keypad characters and dead characters (such as accent marks) X: Fixed loading of amimated GIFs (shows only first image) ---------------------------------------------------------------------- Version 101: October 25, 1999 Showing an inactive child window now raises an exception Added set-paragrapgh-alignment to text% Added 'symbol font family Added {set,get}-paste-text-only to editor<%> Added {set,get}-line-spacing and {set,get}-styles-sticky to text% Added {set,get}-tight-text-fit to editor-snip% A text-field%'s text% is in paste-text-only mode by default Framework changes: - gui-utils:get-choice accepts a new (final) parameter that controls the result when the user cancels the dialog. - added color-model:rgb-color-distance that accepts six numbers representing two colors in rgb form and returns the distance between those colors. Larger numbers mean that the human eye will see larger differences. - when the framework collection has a "CVS" subdirectory, info frames show the current memory usage in the info panel. Clicking the button performs three gcs and updates the memory count. - editor:basic-mixin no longer has a `default-auto-wrap?' method. Just set the parameter method `auto-wrap' directly. ---------------------------------------------------------------------- Version 100: August 9, 1999 MrEd 100 is the successor to MrEd 53. For MrEd 100, we preserved the underlying windowing model, but redesigned the GUI toolbox interface to make it simpler and more Scheme-like. Every MrEd 53 program requires substantial changes to run in MrEd 100. The revised interface makes MrEd more accessible to new users: class and method names are more consistent; useless and redundant methods have been eliminated; and methods check their arguments more precisely. Key portions of the documentation have been re-written, and a new help system called "Help Desk" makes locating information much easier than before. The implementation behind the revised interface is reliable. Whereas previous versions of MrEd were plagued by bugs and inconsistently implemented features, the new interface is consistently implemented across platforms and thoroughly tested. Of course, bugs will always slip through, but MrEd 100 is far more robust than its predecessors as a result of a cleaner implementation and a new testing process. New Application Architecture ---------------------------- MrEd 53 comprised two parts: * a core toolbox (containing names prefixed with `wx:') that was too primitive for real programming (notably, no geometry management); and * an application framework (containing names prefixed with `mred:') that provided crucial functionality (notably, windows with geometry management) but also much more, making it too heavyweight for simple GUI programs. For MrEd 100, we moved the boundary between the core toolbox and the application framework. The name "MrEd" now refers to only the core toolbox, but the core toolbox now includes the most useful `mred:' classes from the old application framework. While merging the `wx:' and `mred:' classes, we eliminated the prefixes. All of the core toolbox classes are built into the MrEd executable. The old `mred:' classes that are not part of the core toolbox have been moved into a separate framework library. The framework library is designed for use in large and polished applications (as opposed to small or prototype applications), and particularly in applications that require coordinated groups of frames, editor frames with searching, or user preference dialogs. Running MrEd and Developing MrEd Applications --------------------------------------------- MrEd 100 is more consistent with MzScheme than previous releases. The default language for MrEd 100 is the same as MzScheme's default language. In contrast, MrEd 53's language had different case-sensitivity and cond-fallthrough behavior. Command-line handling for MrEd 100 is nearly the same as for MzScheme; the only difference is that MrEd executes `(graphical-read-eval-print-loop)' on startup instead of `(read-eval-print-loop)'. MrEd 100 programmers do not need to understand units and collections to implement a simple GUI application. MrEd's `graphical-read-eval-print-loop' implements a rather primitive REPL, unlike the relatively useful REPL provided by the old MrEd toolbox-framework combination. MrEd 100 provides no replacement for the old REPL. Instead, DrScheme 100 provides a REPL that matches MrEd's language exactly. Porting to MrEd 100 ------------------- The remainder of this document provides an overview of MrEd 100 with notes for porting MrEd 53 applications. Section 0 describes a few highlights of the MrEd 100 revision. Section 1 shows the new interface/class hierarchy for windows and a few other parts of the toolbox. Section 2 lists the methods of the new interfaces and classes. Section 3 lists the complete, new set of MrEd procedures, showing the arguments for selected new procedures. Section 4 provides a mapping from the old `wx:const-XXX' constants to the new symbols. Finally, Section 5 lists some of the small, relatively subtle, and potentially confusing changes in MrEd 100 (similar to changes normally listed in the HISTORY notes). Further Details --------------- See plt/notes/mred/MrEd_100.txt in the PLT distribution for further details. ---------------------------------------------------------------------- Version 53: July 25, 1998 IMPORTANT: Expect further major changes in the MrEd toolbox with version 54. See the note for version 51, below. Here are some more expected changes: * wx:text%, wx:multi-text%, wx:text-window%, mred:text%, and mred:multi-text% will be removed and replaced with wx:media%-based tools, i.e., the current mred:media-text% and mred:media-multi-text% Engine: ------- Removed wx:concat-files, wx:string-match?, wx:get-temp-file-name (see MzLib's new make-temporary-file) Procedures and methods that accept wx:const-XXX bit combinations now check their arguments more thoroughly; junk values are no longer ignored The wx:style-delta% initialization and wx:style-delta% set-delta method no longer allow a second argument with command flags where it used to be ignored; the second argument with wx:const-change-underline is now a Boolean rather than 0 or 1 Removed some constants: wx:const-bitmap-type-default wx:const-bitmap-discard-colourmap wx:const-allow-auto-resize wx:const-needed-sb wx:const-event-type-char wx:const-conter (use wx:const-centre) All methods that operate on bitmap files now require that the bitmap type is specified Removed wx:key-event%'s get-event-type, since there was only one possible result Added wx:const-print-postscript, wx:const-print-standard, and wx:const-print-ask Restricted wx:find-path to fewer paths; see MzScheme's new find-system-path Changed wx:list-box%'s get-selections to just return a list of integers The following wx:command-event% methods are deprecated and have been removed from the documentation: get-/set-command-int (use get-/set-selection) get-/set-command-string (use get-/set-string) get-/set-extra-long (use get-/set-selection-type) Cleaned up wx:list-box% multiple-selection (wx:const-multiple and wx:const-extended standardized across platforms) Cleaned up wx:command-event% field values for list-box events Cleaned up canvas scrollbar handling for all platforms; the get-scroll-units method was removed wx:panel%'s set-button-font and set-label-font work consistenly Windows: cleaned up structure of sliders and gauges System: ------- - Fixed minimum mred:slider% size - Cleaned up wx:command-event% field values for list-box double-click events - When only one object of class mred:standard-menus-frame% exists, its File|Close menu item is disabled, and its close button invokes the exit handler ---------------------------------------------------------------------- Version 52: May 25, 1998 IMPORTANT: Expect major changes in the MrEd toolbox with version 53 or so. See the note for version 51, below. Engine: ------- on-set-focus and on-kill-focus work reliably; not all windows can get the focus, but those that do call the on-set-focus and on-kill-focus methods pre-on-char and pre-on-event work for all windows on all platforms wx:begin-busy-cursor no longer takes a cursor argument, but it now works correctly on all platforms set-cursor in wx:window% now accepts and returns null, indicating that the window's cursor is the same as its parents; most windows start out with the null cursor Added number method to wx:menu% and wx:menu-bar The delete methods of wx:menu% and wx:menu-bar return #t if the delete suceeded, #f otherwise System: ------- - mred:standard-menus-frame now has a windows menu. To eliminate it, ovveride "windows-meun" with #f. It is updated by mred:the-frame-group - added documentation for: mred:constants:original-output-port, mred:constants:original-error-port, and mred:constants:original-input-port. - added get-title-prefix to mred:simple-menu-frame% class documented get-title, etc. in mred:simple-menu-frame% class added get-complete-title to mred:simple-menu-frame% class ---------------------------------------------------------------------- Version 51: March 25, 1998 IMPORTANT: Expect major changes in the MrEd toolbox with version 53 or so. Likely changes include: * Removing the useless size arguments for initializing mred:frame%, mred:button%, etc. instances. * Changing the ``nothing'' value (e.g., no parent frame) from null to #f. * Replacing `bitwise-or'ed wx:const-XXX numerical constants with lists of 'wx:const-XXX symbols. Engine: ------- The wx: classes and procedures are no longer ``built-in'' with respect to units; instead, all wx: items are now in the wx@ signed unit, with the signature wx^, so the MzScheme and MrEd languages are the same; the wx^ signature is in MrEd's initial environment and in the "wxs.ss" library of the "system" collection Added a --pre flag for evaluating an expression in a MzScheme-only namespace at startup. This flag is intended for use with image dumps (see the MzScheme manual), which are disabled by default X Windows: mred now accepts a fixed set of standard X Windows command-line flags (it treats them the same as always) instead of letting the platform-specific Xt library decide; these flags must now be specified first if there is no --pre flag, or after --pre's argument if there is one, otherwise the flags are passed on to MrEd's system (for good or ill) X Windows: window manager close-frame request is ignored when a modal dialog is in control Added security so that wx:snip% methods cannot be overridden to crash MrEd Fixed wx:canvas% scrolling on all platforms; the style flags wx:const-hscroll and wx:const-vscroll must be used at canvas-creation to set up for scrolling. Removed the enable-scrolling method from wx:canvas%. Renamed the method get-scroll-page-units to get-scroll-units. Added methods get-scroll-pos, get-scroll-range, and get-scroll-page. The wx:canvas% wx:const-backingstore and wx:const-retained style flags have been removed. Pasteboard printing implemented [finally], and many pasteboard bugs are fixed Removed wx:key-event%'s position method and added get-x, get-y, set-x, and set-y Changed default pen in DC to width 0 instead of 1 Added get-max-view method to wx:media-admin% Revised wx:media-buffer%'s cursor system for better cooperation with embedded buffers; instead of handling the cursor in on-default-event, added a method adjust-cursor to buffers and snips, and replaced admin's set-cursor with update-cursor Added refresh-delayed? predicate to wx:media-buffer%, useful for deciding whether a buffer (or one of its enclosing buffers) is in an edit-sequence Added copy-self-to method to wx:media-buffer% and made copy-self overrideable; copy-self creates a new buffer and copy-self-to copies properties of the buffer to the newly created buffer; now implemented for pasteboards, too Added number-of-visible-items to wx:list-box% Removed wx:copy-file; MzScheme now has copy-file Fixed wx:media-stream-in%'s get-string (it was adding an extra nul character) Removed error dialogs when wx:media-buffer%'s load-file or save-file fails Changed the meaning of wx:keymap%'s implies-shift method; mapping from ``?'', where ``?'' implies a shift, maps both ``?'' and ``s:?''; the idea is that only one of these mappings is possible, but it may be difficult to know which one Windows: fixed canvas mouse events; button-down event grabs the mouse until the next button-up event Windows: fixed initial setting of DC text mode: transparent instead of opaque X Windows: fixed wx:frame's iconize and iconized? methods, ignoring the X idea of not de-iconifying windows that were iconified by the user X Windows: fixed iconification of parentless dialog boxes; they can't be iconified, since there's often no way to get them back Changed the initial setting of an eventspace created by the wx:make-eventspace procedure; now, the initial directory is the current directory when wx:make-eventspace is called Removed wx:exit MacOS: fixed event handling -> better response and performance More PostScript drawing fixes X Windows: added .mred.resources option `mred.forceFocus'; if the value is 1, bringing a frame to the foreground forces the focus there (good for Window Managers where the focus does not follow the pointer); the default is 0, the old behavior MacOS: removed the special -r command-line flag Upgraded to gc 13alpha1 System: ------- - mred console printer improved: - values printer now shows partial results. - last newline inside stdout (purple) boxes ommitted - more efficient - killing and breaking read (finally) works. - printing dialogs for windows and mac work better now - parenthesis matching is improved. The cache is now used much more heavily. - turned off the file name printouts on splash screen evaluate: (wx:write-resource "mred" "splashMessages" 1 (wx:find-path 'setup-file)) to turn them back on. - searching keybindings have changed. There are four distinct actions: action1: move keyboard focus to the searching window, opening it if necessary, or if already there search forward action2: move keyboard focus to the searching window, opening it if necessary, or if already there search backward. action3: search again, in the same direction action4: move the focus between the main window, searching window and replacment window action5: hide the searching window The actions are mapped to different keys, based on the platform. On unix: action1 => control-s, meta-% action2 => control-r action3 => f3 action4 => control-i action5 => control-g On the macintosh: action1 => command-f action2 => command-r action3 => command-g action4 => command-o action5 => command-. On windows: action1 => control-f action2 => control-r action3 => f3, control-g action4 => control-i action5 => escape - set-empty-callback in mred:frame-group% is now set-empty-callbacks in mred:frame-group%. See the docs for more details. - initial basis now documented - provide "simple" interface to unitized apps - mred:edit-file used to return (void) when the file was already open. Now it returns the (already open) frame. - fixed callback printfs from frames. They now appear in the console. - the paren shader used to fail on very large regions. It does not anymore. - fixed mred:radio-box%'s enable method. It now takes two arguments. - better begin/end-edit-sequence support in mred; used by info-frame and to improve the speed in the console io. There is a new method of mred:media-edit: "run-after-edit-sequence". - mred:original-output-port is now called mred:constants:original-output-port mred:original-input-port is now called mred:constants:original-input-port - MrEd's collections are now documented. - The command line flags have changed. Specifically: the -nu flag is now called either "--non-unitized" or "-u". the splash screen flag has changed. - mred no longer imports a unit of the mred:application signature. Instead, the parameter mred:current-app-name is used to get and set the applications name. The eval-string and frame are not used. - CACHE-WRITE-COUNT in a console-edit is no longer used. - set-empty-callback is now set-empty-callbacks. It sets two callbacks, one for when the group is about to become empty and one for when the group is actually empty. See the documentation for more info. - do not use the frame method on-close anymore. Use can-close? and do-close. - renamed the edit-method "on-close" to "do-close" - the startup procedure has changed again. Now, applications are expected to be in a collection. The -a flag has an extra first argument, specifing the collection to load the files from, and a -A flag has been added. See the startup documentation for more information. Also, if you define mred:startup and use the -u (previously -nu) flag, the definition of mred:startup must come after the flag on the command line. For example: mred -e "(define mred:startup (lambda ...))" -nu no longer works. Redefinition of mred:initialize and mred:make-invokeable-unit are no longer supported. Create a new system instead, using the -s flag. - added "set-display/write-handlers" method of mred:console-edit. This work used to happen during a call to the "takeover" method. - mred:get-file and mred:put-file now take a parent window as optional last argument. - added kill-protect and kill-allow-protected to mred:console-edit% - the collection paths are not normalized anymore - fixed bugs in the meta-u and meta-l keybindings - if unmarshalling preferences caused an exception at startup, MrEd would open up EdJr; now it recovers and uses the default value. ---------------------------------------------------------------------- Version 50: August 26, 1997 Engine: ------- Changed wx:dc%'s get-size method to return size of destination area; old [documented] functionality is available via max-x and max-y Made button-click state visible for Xt on b&w displays Fixed and normalized PostScript drawing Removed wx:dc% methods: device-to-logical-x, etc. Windows wx:display-size changed to return the size of the screen not including the task bar Windows: finally fixed scale for [non-PostScript] printing Added wx:[un]register-collecting-blit X Windows: Fixed use of colormap by loaded bitmap images Added an optional argument to wx:media-buffer's print method to supporting fitting to the destination page X Windows: Saving as xbm works for bitmaps of any depth MzScheme pathname expansion performed by all wx: toolbox procedures that take a pathname X Windows Xt: removed excessive borders on wx:canvas% objects X Windows Xt: removed 2 pixel offset for a single auto-sized child in a wx:frame% or wx:dialog-box% Windows: Fixed scrollbars on editor buffers; they're always shown now, but the editor never gets confused about the size Fixed on-size, pre-on-char, and pre-on-event for wx:item% subclasses Fixed confusing argument type and number error messages for overloaded methods of primitive classes System: ------- - fixed a bug in file handlers; if a predicate is supplied, that predicate is only called with one argument, the filename. - added mred:get-single-choice, which takes the same arguments as wx:get-single-choice. It works the same, unless the dialog is resized, in which case the mred: version resizes gracefully. - All of the icons in mred are now loaded lazily (but only once), and their names are prefixed with "get-". They are now: - mred:get-anchor-bitmap - mred:get-lock-bitmap - mred:get-unlock-bitmap - mred:get-icon - mred:get-autowrap-bitmap - mred:get-paren-highlight-bitmap - mred:get-reset-console-bitmap - added mred:info-frame% - split out mred:edit into several edits. The choices for pasteboards and edits are now: mred:media-edit% mred:info-edit% mred:searching-edit% mred:clever-file-format-edit% mred:file-edit% mred:backup-autosave-edit% mred:edit% mred:return-edit% mred:pasteboard% mred:file-pasteboard% mred:backup-autosave-pasteboard% Probably mred:edit is not the right choice for you now. - mred:media-snip% objects now defaultly carry a mred:media-edit% object ---------------------------------------------------------------------- Version 49: May 31, 1997 Engine: ------- Object system changes: see mzscheme/HISTORY for details Fixed Mac event-handling and many other Mac things Fixed garbage collection of hidden frames under Windows (!) Panels, canvases, and controls that are both hidden and inaccessible are now garbage-collected Disabled controls are reliably grayed-out, including items within a disabled panel Instances of wx:pen%, wx:brush%, or wx:pen% that are selected into a drawing context cannot be mutated Immutability of objects obtained via wx:the-XXX-list is enforced Controls for Windows, Xt are created with the "System" family rather than the "Default" family (using resources) Single wx:bitmap% object can be used by multiple controls and/or pens and/or brushes Fixed Motif image-label radio button wx:find-directory replaced with wx:find-path All wx:dc% instances have a default font for drawing wx:const-copy blit never uses the pen/background color; new blit mode wx:const-colour uses current pen X Windows: removed mapping of Mod3 to Alt (too confusing on keyboards where NumLock is Mod3) Fixed wx:timer% bug that caused autosaving to not work Fixed eventspace bugs Fixed .bmp reading when smaller-than-max colormap is provided Fixed interlaced .gif reading for Windows and MacOS Xt: fixed default height of wx:text% items Xt: In a wx:mouse-event% instance, type wx:const-type-XXX-down implies get-XXX-down => #t (formerly #f) Removed wx:group-box% class; use a panel with a border, instead Removed wx:tool-bar% class wx:choice% get-columns and set-columns no longer supported Added wx:gauge% methods: get-value and get-range wx:media-pasteboard% bug fixes and improvements: raise, lower, set-before, and set-after methods now work wx:list-box% set-client-data and get-client-data work with any Scheme data type Windows and X Windows: Break key changed back to shift-ctl-c instead of ctl-c (to avoid conflicts with Emacs-std keyboard mappings) System: ------- - .htx files are no longer supported - the search paths for the mzlib collection have changed. The PLTHOME environment variable is now given preference. - mred:editor-frames are shown by default (the documentation was wrong) - mred:pasteboard-frames initialization arguments have changed and they are not shown by default - autosaving has been moved to new edit and pasteboard classes, mred:backup-autosave-edit and mred:backup-autosave-pasteboard. - mred:add-preference-default now takes a function which determines if preferences read from the disk are valid or not (if not, the default is used) - the show method of mred:dialog-box% only takes one argument now. Use the centre method instead of the second argument - There is only one frame group now, and all frames are registered with it. It is called mred:the-frame-group. Associated changes: - mred:current-frames is gone - mred:edit-file only takes at most two arguments now - handlers do not take a group as an argument - mred:editor-frame% does not take a group as an input argument - classes with the method `get-edit' are treated specially in groups - mred:frame-group% method open-file does not exist, use the procedures mred:edit-file or mred:open-file. - mred:frame-group% ask-before-closing last eliminated. Use the empty-callback method - added locate-file, a method of mred:the-frame-group which takes a filename and returns a frame that is editing that if one exists. - mred:edit-file now consults mred:the-frame-group to see if the file is already open, based on the third argument (or the parameter mred:edit-file-consult-group) - mred:editor-frame - medthod get-frame-group gone from mred:editor-frame% - method open-file's final optional arg eliminated - do-autosave method deleted - register-autosave call moved to mred:std-buffer (ie mred:edit and mred:pasteboard) - The perform-updates and set-perform-update ivars in mred:panel%, mred:frame%, and mred:dialog-box% have been replaced with the delay-updates method in mred:frame% and mred:dialog-box%. Added on-container-resize method to mred:panel%, etc. to handle container resize events, rather than inferring a container resize via on-size (which could confuse real container resizes with external events). Changed force-redraw to ignore refresh requests when the redraw-requesting window is not shown. Redraw requests are now propagated to the top-level frame or dialog via child-redraw-request. - if your application is unititized, then you need to change the startup procedure. See the application startup section in the toolbox manual. ---------------------------------------------------------------------- Version 48: Skipped to avoid confusion with Scheme48 ---------------------------------------------------------------------- Version 47: January 11, 1997 Engine: ------- WARNING: multiple inhertance is going away in 48 Added overwrite-styles? arg to wx:media-buffer%'s read-from-file, and added get-/set-load-overwrites-styles methods Modified wx:media-buffer%'s set-caret-owner to provide more levels of focus control Controls with bitmap labels work correctly, fixed crashing bugs, some Mac controls do not display yet wx:bitmap%'s load-file only allowed when the bitmap is not selected into a wx:memory-dc% object or used by a control System: ------- - find-string-embedded of mred:edit% is just like find-string except it searches in embedded buffers as well. - mred:frame-name is gone, use app-name in the application unit instead, which is documented under the `Starting Up' section of the toolbox manual. - the signature mred:application^ now contains the variable app-name. ---------------------------------------------------------------------- Version 46: December 5, 1996 Engine: ------- Fixed misc. Motif control-sizing problems Mac & Xt: "&" stripped from control labels correctly wx:yield takes an optional semaphore argument System: ------- - pretty-print-out is gone, use display-result instead, if you want to display results ---------------------------------------------------------------------- Version 45: November 12, 1996 Engine: ------- IMPORTANT: let-values is now analogous to let; the old let-values is now let*-values Added thread-savy parameterization system; namespace system changed Added eventspaces wx:server%, wx:client%, and wx:connection% are no longer supported (Better TCP support is now built into MzScheme) wx:the-snip-class-list was replaced by (wx:get-the-snip-class-list) wx:the-buffer-data-class-list was replaced by (wx:get-the-buffer-data-class-list) Added transparent text backing for editor text Added wx:dc% try-colour method wx:window% capture-mouse, release-mouse, and make-modal no longer supported Modal dialogs can be used instead of make-modal (modal is specified through the constructor). There is currently no replacement for capture-mouse and release-mouse, but a replacement is likely to be in 46. Xt and Mac: "&" stripped from control labels (matches Windows/Motif), sortof System: ------- - frame groups no longer set the frame title prefix - there is a new edit%, mred:return-edit%. It takes an extra arg at initialization time, which should be a function that will be called when the user types return in the edit. - takeover-output is now takeover and release-output is gone. In the next release this should become obsolete - there are now two new methods of simple-menu-frame%'s, get-edit and get-canvas. These return the current "main" edit and canvas in the frame. They should be used for saving, reverting, etc. If your frame can have more than one "main" edit then override get-edit and get-canvas and have them return the current main canvas. Note that this is different from active-canvas and active-edit. Those two functions may return *any* visible edit in the frame, eg one of the searching edits in the bottom of the frame, that appear while searching. active-edit and active-canvas should be used for things like pasting and copying, which should apply to all edits, not just "important" or "main" ones. - mred:simple-frame-canvas% and mred:editor-canvas% are now obsolete. Instead there are now three important canvas classes in the system: mred:wrapping-canvas% : handles autowrapping, can create edits automatically, uses style-flags ivar and style initialization for default styles to super-init, and implements edit-modifited and edit-renamed mred:one-line-canvas% is just the right height to display one line of text. inherits from mred:wrapping-canvas% mred:frame-title-canvas% updates the title of the frame when it receives focus events. inherits from mred:wrapping-canvas% - all of the "connection maintenence" ie edits that know which canvses they are in, frames that know which canvas is the most recently active canvas have been moved into into separate classes that only maintain those connections, mred:connections-media-edit%, mred:connections-media-canvas%, mred:connections-frame%, mred:connections-dialog-box%, and mred:connections-panel% - all instance variables class% (e.g. edit% and canvas% on frames) have been changed to get-class%, to support inheiritance. - added extra optional arg to mred:local-busy-cursor and mred:show-busy-cursor that specifies the timeout - frame title prefixes are now handled by the frame, and the set-frame-prefix and set-frame-title methods correctly update the graphical frame with it's new title. ---------------------------------------------------------------------- Version 44: September 9, 1996 Engine: ------- wx:play-sound added Saving bitmaps fixed on all platforms; editor can now save "inlined" images instead of only references to images Hyper-text browser handles HTML files (w/o networking) Fixed Mac control drawing and hiding Fixed Xt menus (finally!) Fixed menu item auto-check for popup menus Fixed Motif canvas click event reporting (spurious drags) See also mzscheme/HISTORY, wxme/README, and system/HISTORY Upgraded to gc 11alpha3 System: ------- - .html files (with file: links) are supported - system now provides and uses a better dialog buildling classes. See toolbox manual for more info - changed do-eval and do-save-and-eval-or-read-avail to accept a range in the edit rather than a string - added read-snips/chars-from-buffer, a function that takes an edit and produces a thunk. That thunk returns either a snip or a character, for each character and non-text snip in the edit. - added a check so that edits will now save themselves in mred's format if there are non-text snips in the edit. ---------------------------------------------------------------------- Version 43: Re-released August 12, 1996 Under GNU LGPL license ---------------------------------------------------------------------- Version 43: August 9, 1996 Engine: ------- Major system overhaul (Robby Findler); see system/HISTORY Windows stability greatly advanced Windows and MacOS versions much more "Windows-like" and "Mac-like" with standard menu shortcuts and better icons MacOS and Windows use native print facilities GIF images supported under Windows wx:window set-client-size removed wx:panel%'s get-cursor renamed to get-item-cursor; added set-item-cursor Fixed cut-n-paste newlines under MacOS and Windows Xt: panel with one item no longer auto-sizes the child See also mzscheme/HISTORY System: ------- - replaced search dialogue - new application startup procedure - mred:frame% changed to mred:editor-frame% - mred:canvas% changed to mred:editor-canvas% - mred:console-frame renamed to mred:console - mred:console-edit and mred:console-canvas gone, use (ivar mred:console edit) and (ivar mred:console canavs) - expanded keybindings -- most movement keys now have a shifted form that selects text - added mred:standard-menus-frame% which gets the right keybindings for the different platforms ---------------------------------------------------------------------- Version 42: June 8, 1996 Documentation translated to Scheme notation, corrected Windows update bug fixed for embedded buffers MacOS memory use greatly improved Fixed annoying non-standard Windows beep Non-matching cond or case expression raises and error mred:platform and mred:window-system changed to wx:... standard system uses functors (see MzScheme) wx:canvas%::int-draw-line and wx:int-point% removed wx:list%, wx:hash-table%, wx:string-list%, wx:path-list removed wx:media-stream-in%::get removed for strings; use get-string Redundant wx: functions removed: wx:dir-exists? (use directory-exists?) wx:file-exists? (use file-exists?) wx:file-name-from-path (use file-name-from-path or split-path) wx:path-only (use path-only or split-path) wx:is-absolute-path? (use reletaive-path?) wx:expand-path (use expand-path) wx:get-working-directory (use current-directory) wx:set-working-directory (use current-directory) wx:mkdir (use make-directory) wx:remove-file (use delete-file) wx:rename-file (use rename-file) wx:get-user-home and wx:get-home-dir (use expand-path with "~") wx:execute and wx:shell (use system or process) wx:find-first-file and wx:find-next-file (use get-directory-list) wx:sleep (use sleep) wx:sub-type? (use subclass?) wx:to-lower (use char-upcase) wx:to-upper (use char-downcase) wx:is-wild? (use reg exps) wx:match-wild? (use reg exps) Version 0.41: April 15, 1996 Important language changes; see mzscheme/HISTORY Fixed bug in wxCanvas drawing methods Fixed wxCanvasDC and wxMemoryDC bugs in Xt version Pasteboards fixed AIX: two consecutive SIGDANGERs => exit(-1) wxGetMultipleChoice supported Version 0.40: March 24, 1996 Possible improvements to memory system Some redundant event methods removed Finally fixed Windows NT/95 Scheme threads Stdout/stderr messages to a window instead of file for Windows/Mac+ Fixed misc. Xt problems, including show-n-hide on frame Version 0.39: March 6, 1996 Fixed safety from Scheme on invalidated C++ objects (stack objs, too) Fixed many bugs in Xt version Upgraded to gc version 4.10 Reduced memory usage of buffer objects Version 0.38: February 22, 1996 Xt port released Part of standard system moved to DrScheme See also mzscheme HISTORY and wxmedia README Version 0.37: Not released Version 0.36: January 18, 1996 Fixed bug in MzScheme's bignum multiplication Version 0.35: January 17, 1996 X selection protocol supported. To get the old clipboard-style mechanism, add this to your .mredrc: (wx:media-set-x-selection-mode #f) See also wxMediaEdit::SetPosition() in the wxMedia manual. Version 0.34: December 30, 1995 Minor improvements to MzScheme and the standard system Version 0.33: December 21, 1995 MzScheme language changes; see mzscheme/HISTORY Old standard system no longer compatible Project system improved Many bugs fixed in the new standard system Version 0.32: December 4, 1995 New standard system: * The console I/O is completely different. It works more like an Emacs shell. Use M-p and M-n to access previously entered expressions. (read) will now read from the console. * All mred:std- variables have been eliminated. For each mred:%, there is now a procedure mred:make-% that takes a superclass and returns a new class. * The frame and buffer hierarchies have changed a little. * From a mred:edit% object, you can get to its canvas or frame. * The menubar/menu system is completely revised. You don't have to deal with menu ids much anymore. Menus and menu items can now be dynamically added and removed. * Keymap chaining works differently. * The new Scheme project system is roughly in place. This will let you develop Scheme programs by organizing Scheme files within a project. Projects help manage loading program files into the evaluator and uses Shriram's Zodiac/Aries packages to provide debugging facilities. This will be improved in the near future. The old standard system is available in the "oldsys" directory. Pretty printer handles loops and graphs Very limited support for wxYield under XView - will be extended Fixed some wxMedia bugs (see wxme/README) Fixed some MzScheme bugs (see mzscheme/HISTORY) Version 0.31: November 14, 1995 Fixed some wxMedia bugs (see wxme/README) Fixed some MzScheme bugs (see mzscheme/HISTORY) Parameterization for Macintosh Verion 0.30: October 25, 1995 Added call-with-values and regexp to MzScheme Unix stack-checking setup code fixed in MzScheme wxMediaPasteboard implemented more Scheme-C++ object link changed; use ptr in all C++ objects Added tutorial section to "User Manual" Version 0.29: October 18, 1995 Editor can save text preserving automatic CR Bug fix in automatic line-wrapping New font system can access arbitrary fonts Multiple displays in Motif: wx:set-display and wx:get-display-name MzScheme fix for forms such as (let ([x (let ...)]) ...) Version 0.28: October 3, 1995 MzScheme bug fix: stack-checking on Unix wxMedia fix: Insert(unsigned char, ...) instead of Insert(char, ...) and proper use of `unsigned' in word-breaking array access Version 0.27: September 29, 1995 Major MzScheme upgrade, including multiple inheritance (See MzScheme HISTORY for details) Win32: Allow deeper recursion by copying the stack Win32: Allow breaking with Shift-Ctl-C New font configuration system Version 0.26: September 8, 1995 Very minor changes Bug fix to MzScheme for Win32s Version 0.25: September 7, 1995 Upgraded to wxWindows 1.63 Minor bug fixes Version 0.24: September 1, 1995 Minor bug fixes Version 0.23: August 23, 1995 Minor bug fixes Editor can display images (types depend on wxWindow compile flags) MzScheme correction: expand & expand-once Version 0.22: August 17, 1995 Mostly MzScheme improvements File-format bug fixed related to portability; To make files created earlier portable, open and re-save them. Version 0.21: August 8, 1995 Bug fixes triggers, hash tables, and case-lambda added to MzScheme MzScheme "sleeps" properly Connected MrEd to wxWindow's layout constraint system Version 0.20: July 26, 1995 MzScheme Bug fixes Version 0.19: July 25, 1995 All "!"s removed from method names!!!!! Full continuations and bignums added to MzScheme Bug Fixes Version 0.18: July 20, 1995 Win32s kinda supported Bug fixes Added (compile ...) to MzScheme Added internal processes & threads to MzScheme wxSnipData -> wxBufferData Old process and system changed to process* and system* Version 0.17: July 11, 1995 Bug fixes, especially Motif and memory bugs Rewrote editor line-maintenance Faster caret updating Upgraded garbage collector File format changed to accommodate nested buffers with separate style lists Standard system standardized Code changes for compiling on MSWindows (almost works...) Scheme mode Version 0.16: June 16, 1995 Fixed define-struct bug Version 0.15: June 15, 1995 Bug fixes, especially XView make-input-port takes only 3 args; "unget" param dropped on-local-char & on-local-event renamed to on-default-char and on-default-event name changes: to have "!" or not to have "!". See doc/names.diff for a list of changed names fonts configuarble through .Xdefaults; see MrEd.ad Version 0.14: June 9, 1995 Bug fixes, including wxWindows widget table clash Scheme mode works error-handler changed to parameterizing function Version 0.13: June 5, 1995 MzScheme replaced libscheme ctl-c breaks Scheme evaluation in MrEd libscheme/ changed to mzscheme/ - change your make.env! Version 0.12: June 1, 1995 Bug fixes Revised object system: requires (inherit ...) declarations (pretty-print ...) installed Version 0.11: May 19, 1995 Bug Fixes Version 0.10: May 19, 1995 Bug fixes (match ...) installed Version 0.9: May 18, 1995 wxMediaPasteboard Version 0.8: May 11, 1995 Bug fixes Version 0.7: May 10, 1995 mred:default- changed to mred: in system README in demo directory Lots of bug fixes